How to change your character to a custom model in game?

Okay, so I'm wanting to make it so my character presses e and turns into another character. --Local Script--

local player = game:GetService("Players")
local rep = game:GetService("ReplicatedStorage")
local event = rep.Remotes.Shift

game:GetService("UserInputService").InputBegan:connect(function (input)
			if input.KeyCode == Enum.KeyCode.E then 
	        event:FireServer()
	    end
	end)

--Server Script--

local event = game.ReplicatedStorage.Remotes.Shift
local armor = game.Workspace["Armored Titan"]
local function armored(player)
---
	local hum = player.Character:WaitForChild("Humanoid"):Clone()
	hum.RigType = "R15"
	hum.Parent = armor
	player.Character = armor
	
end

event.OnServerEvent:Connect(armored)

Right now all it does is this https://gyazo.com/d689dfff95412912279c0c2d38728171